AirspaceQuestion 152 of 934

In most areas, what is the base of Class E airspace?

  1. 1,200 feet AGL
  2. The surface
  3. 500 feet AGL
  4. 18,000 feet MSL
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Correct answer: 1,200 feet AGL

The Class E base is 1,200 feet AGL in most areas. In many other areas it is the surface or 700 feet AGL.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 15: Airspace — Class E Airspace, page 378

Practice airspace

Questions last reviewed: 18 October 2026